842161617 has 40 divisors (see below), whose sum is σ = 1375299552. Its totient is φ = 509328000.

The previous prime is 842161613. The next prime is 842161667. The reversal of 842161617 is 716161248.

It is a happy number.

842161617 is a `hidden beast` number, since 8 + 4 + 21 + 616 + 17 = 666.

842161617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 842161617 - 2² = 842161613 is a prime.

It is not an unprimeable number, because it can be changed into a prime (842161613) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 700617 + ... + 701817.

Almost surely, 2^842161617 is an apocalyptic number.

It is an amenable number.

842161617 is a deficient number, since it is larger than the sum of its proper divisors (533137935).

842161617 is a wasteful number, since it uses less digits than its factorization.

842161617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011 (or 2002 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 842161617 is about 29020.0209682902. The cubic root of 842161617 is about 944.3474557806.

The spelling of 842161617 in words is "eight hundred forty-two million, one hundred sixty-one thousand, six hundred seventeen".